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/*-------------------------------------------------------------------------
 * Copyright (C) 1997	National Center for Supercomputing Applications.
 *			All rights reserved.
 *
 *-------------------------------------------------------------------------
 *
 * Created:		H5Hprivate.h
 *			Jul 16 1997
 *			Robb Matzke <matzke@llnl.gov>
 *
 * Purpose:
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
#ifndef _H5Hprivate_H
#define _H5Hprivate_H

#include <H5Hpublic.h>

/* Private headers needed by this file. */
#include <H5private.h>
#include <H5Fprivate.h>

#define H5H_MAGIC	"HEAP"		/*heap magic number		     */
#define H5H_SIZEOF_MAGIC 4

#define H5H_ALIGN(X)	(((X)+7)&~0x07) /*align on 8-byte boundary	*/

#define H5H_SIZEOF_HDR(F)						      \
    H5H_ALIGN(H5H_SIZEOF_MAGIC +	/*heap signature		*/    \
	      4 +			/*reserved			*/    \
	      H5F_SIZEOF_SIZE (F) +	/*data size			*/    \
	      H5F_SIZEOF_SIZE (F) +	/*free list head		*/    \
	      H5F_SIZEOF_ADDR (F))	/*data address			*/

#define H5H_SIZEOF_FREE(F)						      \
    H5H_ALIGN(H5F_SIZEOF_SIZE (F) +	/*ptr to next free block	*/    \
	      H5F_SIZEOF_SIZE (F))	/*size of this free block	*/

typedef enum H5H_type_t {
    H5H_LOCAL	 = 0,		/*local symtab name heap		     */
    H5H_GLOBAL	 = 1		/*global small object heap		     */
} H5H_type_t;

/*
 * Library prototypes...
 */
herr_t H5H_create (H5F_t *f, H5H_type_t type, size_t size_hint,
		   haddr_t *addr/*out*/);
void *H5H_read (H5F_t *f, const haddr_t *addr, size_t offset, size_t size,
		void *buf);
const void *H5H_peek (H5F_t *f, const haddr_t *addr, size_t offset);
size_t H5H_insert (H5F_t *f, const haddr_t *addr, size_t size,
		   const void *buf);
herr_t H5H_write (H5F_t *f, const haddr_t *addr, size_t offset, size_t size,
		  const void *buf);
herr_t H5H_remove (H5F_t *f, const haddr_t *addr, size_t offset, size_t size);
herr_t H5H_debug (H5F_t *f, const haddr_t *addr, FILE * stream, intn indent,
		  intn fwidth);
#endif